﻿using Microsoft.VisualBasic.CompilerServices;
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Globalization;
using System.Linq;
using System.Reflection;
using System.Runtime.CompilerServices;
using System.Text;
using System.Threading.Tasks;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Data;
using System.Windows.Documents;
using System.Windows.Input;
using System.Windows.Interop;
using System.Windows.Media;
using System.Windows.Media.Imaging;
using System.Windows.Navigation;
using System.Windows.Shapes;
using Tnelab.MBWrapper;
using Unity;

namespace Tnelab.MBWpf
{
    /// <summary>
    /// Follow steps 1a or 1b and then 2 to use this custom control in a XAML file.
    ///
    /// Step 1a) Using this custom control in a XAML file that exists in the current project.
    /// Add this XmlNamespace attribute to the root element of the markup file where it is 
    /// to be used:
    ///
    ///     xmlns:MyNamespace="clr-namespace:Tnelab.MBWpf"
    ///
    ///
    /// Step 1b) Using this custom control in a XAML file that exists in a different project.
    /// Add this XmlNamespace attribute to the root element of the markup file where it is 
    /// to be used:
    ///
    ///     xmlns:MyNamespace="clr-namespace:Tnelab.MBWpf;assembly=Tnelab.MBWpf"
    ///
    /// You will also need to add a project reference from the project where the XAML file lives
    /// to this project and Rebuild to avoid compilation errors:
    ///
    ///     Right click on the target project in the Solution Explorer and
    ///     "Add Reference"->"Projects"->[Select this project]
    ///
    ///
    /// Step 2)
    /// Go ahead and use your control in the XAML file.
    ///
    ///     <MyNamespace:CustomControl1/>
    ///
    /// </summary>
    public class MBServiceWebView : MBWebViewBase
    {
        public IUnityContainer ServiceContainer { get; set; }
        static MBServiceWebView()
        {
            DefaultStyleKeyProperty.OverrideMetadata(typeof(MBServiceWebView), new FrameworkPropertyMetadata(typeof(MBServiceWebView)));
        }
        public MBServiceWebView() {
            this.Loaded += MBServiceWebView_Loaded;
        }

        private void WebView_LoadUrlBegin(object sender, LoadUrlBeginArgs e)
        {
            if (e.Url.Scheme.ToLower() == "tne")
            {
                var assemblies = AppDomain.CurrentDomain.GetAssemblies();
                var host = e.Url.Host.ToLower();
                var assemblie=assemblies.SingleOrDefault(iterator => iterator.FullName.ToLower().StartsWith($"{host},"));
                var path = e.Url.AbsolutePath.Replace("/",".").ToLower().Remove(0, 1);
                var name = assemblie.GetManifestResourceNames().SingleOrDefault(it=>it.ToLower()==path);
                using (var stream = assemblie.GetManifestResourceStream(name))
                {
                    for(var i = 0; i < stream.Length; i++)
                    {
                        e.Datas.Add((byte)stream.ReadByte());
                    }
                }
            }
        }

        private void MBServiceWebView_Loaded(object sender, RoutedEventArgs e)
        {
            if (!DesignerProperties.GetIsInDesignMode(new DependencyObject()))
            {
                this.WebView.LoadUrlBegin += WebView_LoadUrlBegin;
                WebView.Resize((int)this.ActualWidth, (int)this.ActualHeight);
                if (Url==null)
                {
                    WebView.LoadUrl(new Uri("https://www.baidu.com"));
                }
                else
                {
                    WebView.LoadUrl(this.Url);
                }
            }
        }

        protected override IWebViewBase OnCreateWebView()
        {
            HwndSource panelHwnd = HwndSource.FromVisual(this) as HwndSource;
            return WebViewFactory.CreateServiceAble(panelHwnd.Handle, action => this.Dispatcher.Invoke(action), ServiceContainer);
        }
    }
}
